Flexible film-transducers based on polypropylene piezoelectrets: Fabrication, properties, and applications in wearable devices.
文献类型：期刊论文
| 作者 | Ma, Xingchen; Zhang, Xiaoqing; Fang, Peng |
| 刊名 | SENSORS AND ACTUATORS A-PHYSICAL
 |
| 出版日期 | 2017 |
| 文献子类 | 期刊论文 |
| 英文摘要 | In this work, piezoelectrets were prepared by the microstructure modification and corona charging of polypropylene (PP) foam sheets, and film-transducers based on such fabricated piezoelectrets were further developed. The electromechanical performances of the as-prepared transducers were investigated, including the complex dielectric spectra, frequency response, thermal stability, humidity sustainability, and fatigue resistance. The experimental results showed that the typical capacitance and impedance of the transducers were 43.7 pF and 3.6 M Omega at 1 kHz, respectively. Piezoelectric sensitivity up to 600 pC/g was achieved, but after annealing treatments at temperatures of 50, 70, and 90 degrees C for 24h, only 54%, 30%, and 13% of the initial values were remained, respectively. The transducers had an appreciable sustainability in high-humid environments, and about 70% of the initial sensitivity was still retained in a humidity of 98% after 37 days. In fatigue tests, the sensitivity decreased to 70% of the initial value after 1.5 million cycles of operation with a dynamic pressure of 2 MPa that was applied perpendicularly onto the samples. The performance assessments demonstrated that the PP-piezoelectret film-transducers would have promising applications in wearable devices, which were also preliminarily exploited. (C) 2017 Elsevier B.V. All rights reserved. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/11936]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | SENSORS AND ACTUATORS A-PHYSICAL |
| 推荐引用方式 GB/T 7714 | Ma, Xingchen,Zhang, Xiaoqing,Fang, Peng. Flexible film-transducers based on polypropylene piezoelectrets: Fabrication, properties, and applications in wearable devices.[J]. SENSORS AND ACTUATORS A-PHYSICAL,2017. |
| APA | Ma, Xingchen,Zhang, Xiaoqing,&Fang, Peng.(2017).Flexible film-transducers based on polypropylene piezoelectrets: Fabrication, properties, and applications in wearable devices..SENSORS AND ACTUATORS A-PHYSICAL. |
| MLA | Ma, Xingchen,et al."Flexible film-transducers based on polypropylene piezoelectrets: Fabrication, properties, and applications in wearable devices.".SENSORS AND ACTUATORS A-PHYSICAL (2017). |
入库方式： OAI收割
来源：深圳先进技术研究院
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